Ventilator



Patented Oct. 21, 1924. ,e

UNITED 'y STATES ,PATENT-"OFFICE vENTILAToB.

Application nled'anuary 7, 1924. Seria1`lto.-684,836. y .j

To aZZwwm t may concern: 'i j Be it known that I, THEononE S. DEN nsHA,a citizen of the United States, residingat New Bedford, in the county ofBristol and State of Massachusetts, have invented new and usefulImprovements in Ventilatore, of which the following is a specification.y

The present invention relates to ventilating devices, and moreparticularly to a combined ventilator and screen intended for use Wheresubstantially continuous ventilation is desired. j

An object of the invention is to provide a ventilator which serves toexclude insects, and which cannot be readily removed by one attemptingto obtain Iadmission through the window to which the same is applied.

A further object of the invention 1s to provide a ventilator which maybe conveniently adjusted in order to regulate the volume and thedirection of the draft permitted to enter aroom, and which, is sightlyand durable in construction.

Referring to the accompanying drawings, wherein there is disclosed apreferred embodiment of the invention,

Figure 1 is an elevational view of the ventilator installed, the samebeing viewed from the interior of a room. f-

Figure 2 is a top plan view,

Figure 3 is a vertical sectionfon theine 3 3 of Figure 1, and j Figure 4is a section on the line 4 4 of Figure 1, looking in the direction ofthe arrows. A

In the drawings, 10 indicates a window frame having an inner sill 11 andan outer sill 12, and serving to inclose a lowersash 13 verticallymovable between guides or stops 14, 15 positioned at each side 'of thesash.

The ventilator, which is positionedfbeneath the partially raised lowersash, comprises a rectangular frame, including upper and lowerhorizontal parts or strips 16 and connecting end strips 17. The strips16 have a pluralityvof sockets serving toreceive the pintles 18 of aseries o f slats 19, which are adjustable about the pintles as verticalaxes. A connecting rod 20 is secured yto the individual slats, as bymeans of eyes 21, upon the slats and rod, respectively, and as will beunderstood, longitudinal adjustment of the rod serves to open and closethe slats,

` ing of the ventilator at all times.

thereby permitting regulation ofV the draft admitted lthrough theventilator. The end strips 17'ofth`e frame have'sockets 23 serving toAreceive the ends of the rod ,20 when the spaces between the slats'l areclosed;

The frameis of rsuttit'nientwidth to project between the sash guides 14,15 and ordiynarily is installedby removal of one of the inner' stopsy14, which :is replaced after the frame is tted into position. It will benoted that the frame pieces are of substantially light material, whichdoes not entirely fill the space between the sash guides. The frame isprovided with a binding comprising end pieces 25, one of the same beingshown in Figure 4, which are of substantially the ywidth of the sashgroove between the guides, and thus insure a rigid position- Moreover,in order to further guard against removal of the ventilator, and toprotect the same, a top ybinding strip 26 yis provided,

the same being of substantially greater width than the frame and havingits inner surface Hush withy the inner face of the frame. Ther top pieceprojects beyond the outer face of theframe, and at its ends is formedwith notches 27, which receive the outer guides 15.' This piece servesas an abutment forthe windowvsash and protects a 'screen y27, which ispositioned upon the outside of the ventilator. A spacing. strip 28serves to space the screen from the-slats, and upon ythe strip themargin of the screen is secured by means of a molding 29.

It will be observed that vthe ventilator is very simple in construction,and the arrangement of the parts above described affords a durablestructure whichy cannot be readily removed by one seeking admission to aroom through the window to which the ventilator is applied.

The top face of the binding v,serves to support the window sash. Inorder to positively exclude rain vand moisture, a sealing strip 30,substantially L-shaped in cross section, is secured to the top piece andits upwardly projecting portion overlaps the sash. This sealing stripmaybe dispensed with if desired, but ordinarily it will be found to be avaluable adjunct.

When the ventilator is installed, the screen 27- serves to excludeinsects, and by adjusting the slats, the draft may bey directed towardthe right or left, as may be desirable. Moreover, a draft may bepractically eliminated by closingv the slats. The entire structure isextremely durable, and

vpractically the only part which will at any frame of substantiallygreater width than said frame and including a top piece having endportions adapted to extend between said sash gudesysaidftop piece havingone edge Hush with the inner surface of the l:E1-ame and on the otherside of the latter extending outwardly over said screen and stripz theends of said toppece on the last mentioned side of the frame havingnotches serving to receivethe outer sash guides,l and a sealingv flangeon said top piece extending upwardly and adapted to overlap the sashwhen the latter rests upon the said top piece.

Intestimony whereof I have hereunto set. my hand.'

- vflHLoDoRE s. DENESHL

